abstract class B {
    public int a;
    public int b;
    public B(){

    }
    public B(int a, int b) {
        this.a = a;
        this.b = b;
    }

    public void func(){

    }
}
class C extends B{
    public C(){
        super(1,2);
    }
}
public class Test2 {
}
